Quietum Plus directions don’t specify whether to take the supplement in the morning or night. Based on product reviews, it looks like most people take it in the morning or afternoon.
https://www.outlookindia.com/outlook-spotlight/quietum-plus-reviews-2023-urgent-customer-update-fake-results-exposed-buyer-beware-news-259109
https://medium.com/@mariaharlan5588/quietum-plus-reviews-what-is-quietum-plus-and-why-you-need-it-38a4c67b5dda